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Most Helpful Customer Reviews

The product, SeaFoam Auto Marine Motor Treatment (purchased off the shelf at WalMart) is a great product and has brought my 1993 Mazda MPV into its second youthful existence. The problem is that Amazon.com and its vendor haven't delivered the bulk order I placed over one month ago. I'm sure they enjoyed the money, I'd love to enjpy the product. Stay away from any product that isn't an Amazon on the shelf item!

So far as I know, Seafoam was originally developed as a greatly reduced price additive (relative to Yamaha's RING FREE) for marine engines.

Well, a year ago first I added it to the gas tank of my rough running 1979 Honda GoldWing GL1000 motorcycle that has one of the most complicated carburetors known. I think 9 out of 10 problems with the '75-'79 Wing's carbs (I also own a '78 Wing) have to do with deposits from the lousy (YES, lousy!) gas that we use -- never mind the 10% or more alcohol that sucks water into the gas that increases engine corrosion. Anyhow, after running a few tanks of gas (containing 2 oz Seafoam per 5 gal) through the bike, lo and behold the rough running stopped, and gas mileage shot up.

There's more. So I also own a vintage 1992 Volvo 240 station wagon (that I had bought new) that was beginning to feel like it had hardening of the arteries in its fuel injectors. Same story as the motorcycle. After (changing the spark plugs & then) running two tanks of gas laced with the recommended "dose" of Seafoam the Volvo got back its old frisky self -- and I don't exaggeate when I write that it runs like a new car! My wife has a 1991 Volvo 240 station wagon (similarly bought new) -- same story.

I had a check engine light and used a bottle in my gas tank. The CEL went away for a little while but came back so I decided to put it right in the engine like I've seen online. I put some in through the brake booster line and a TON of white smoke pumped out the exhaust. Immediately the check engine light went away. I swear this stuff is magical.

I've used this stuff on everything from a weed whip to a snow blower, several cars, snowmobiles and a 3 wheeler. It cleans out everything without damaging the engine at all. I read up extensively before using it and this stuff is stringently tested and has passed every test. You can use it on ANY engine, diesel, gas big or small. Try it out if you're having any hesitation or hard idle problems with your engines before anything else. You'll see and feel the difference with one use, keep using to keep your engine running good. Gas tank and crank case by the way. Even in your air intake to clean up the carbon. Best price right here on Amazon, even cheaper than walmart after shipping and handling. Highly recommended.

Now using this instead of fuel Power Care or "Stabil" gas stabilizers. Keeps the carburetor jets open on my 2007 Ski-Doo even when stored all summer. The Ski-Doo fires up on first attempt. Previous fuel stabilizers did not work.I now use it all my lawn equipment and motor home. Wish I new about Sea Foam 5 years ago.

i use seafoam in my cars, trucks and motorcycle.its excellent. i run it through the gas tank and the pcv valve, and use the deep creep on the throttle bodies.stabilizes the fuel, and cleans the varnish and carbon from the internals.great stuff. couldn't recommend more highly.

most stuff in a can is hokus pokus. seafoam is the real deal and worth every penny.

I use Seafoam on my Honda CBR 1100XX at least twice a year. At the begining of the riding season, in April, to clean out my fuel lines and fuel injectors. And again at the year's end when I put the bike away for the Winter. It prevents the fuel from gumming up the FI and fuel lines while the bike is not in use. A great product.